pulled the intake to find wet valves and oil dripping from the bronze guides.

i JUST replaced the valve seals with OEM - they were brown i think. its on the intake side.

also very strange, mabye? looking into exhaust ports.... #1 is really bad, #2 is better, #3 even better, #4 shows basically no sign of oil burn... but all 4 intake ports are leaking oil equally... mabye something to do with velocity?? i have no clue

try it again or pull the head?

 

For what its worth I had a similar issue on the intake side. Turned out the coating on the skirts of my pistons had slightly chipped away near the ring lands and it was causing it to pool the oil and allow it above the rings and somehow circulate it into the intake track.

That exhaust side looks ridiculous though. Pull the head and a couple springs/retainers. Raise the valve like 1 inch off the seat and wiggle it to see if it has excessive clearance to the guide.